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    SWITCHING CONVERTER
    314.
    发明申请
    SWITCHING CONVERTER 有权

    公开(公告)号：US20220166321A1

    公开(公告)日：2022-05-26

    申请号：US17532867

    申请日：2021-11-22

    Applicant: STMicroelectronics S.r.l.

    Inventor： Niccolo' Brambilla ,  Sandro Rossi ,  Valeria Bottarel ,  Alessandro Nicolosi

    IPC: H02M3/158 ,  H02M1/08 ,  H02M1/00 ,  H03K17/687

    Abstract: In an embodiment, a switching converter includes: a switching stage configured to receive a direct current input voltage, receive a driving signal for driving the switching stage, and provide a direct current output voltage according to the input voltage and the driving signal; a driving stage configured to provide the driving signal to the switching stage; a current sensing circuit configure to sense an output current provided by the switching stage; and a voltage generation circuit configured to generate at least one supply voltage for powering the driving stage, and adjust the at least one supply voltage according to the output current.

    SWITCHING CONVERTER
    315.
    发明申请
    SWITCHING CONVERTER 有权

    公开(公告)号：US20220166320A1

    公开(公告)日：2022-05-26

    申请号：US17532833

    申请日：2021-11-22

    Applicant: STMicroelectronics S.r.l.

    Inventor： Niccolo' Brambilla ,  Sandro Rossi ,  Valeria Bottarel ,  Alessandro Nicolosi

    IPC: H02M3/158 ,  H02M1/00

    Abstract: In an embodiment, a switching converter includes: a switching stage including first and second switching devices for receiving an input voltage and for providing an output voltage; a driving stage including first and second driving devices for driving the first and second switching devices, respectively; a current sensing arrangement for sensing an output current provided by the switching stage; a voltage generation arrangement configured to generate a supply voltage for powering the driving stage, the voltage generation arrangement being configured to adjust the supply voltage according to the sensed output current; and a charge recovery stage configured to store a first electric charge being lost from the first driving device during driving of the first switching device and to release at least partially the stored first electric charge to the second driving device during driving of the second switching device.

    Detection circuit, corresponding device and method
    316.
    发明授权
    Detection circuit, corresponding device and method 有权

    公开(公告)号：US11342885B2

    公开(公告)日：2022-05-24

    申请号：US16698060

    申请日：2019-11-27

    Applicant: STMicroelectronics S.r.l.

    Inventor： Alessia Maria Elgani ,  Francesco Renzini ,  Luca Perilli ,  Eleonora Franchi Scarselli ,  Antonio Gnudi ,  Roberto Canegallo ,  Giulio Ricotti

    IPC: H03F1/02 ,  H03D1/10 ,  H03D1/18 ,  H03F3/193

    Abstract: In one example, a circuit includes a first node to receive an analog signal that is an amplitude modulated radio-frequency signal for a digital signal. An output node is configured to provide an output signal indicative of rising and falling edges of an envelope of the analog signal. The rising and falling edges are indicative of rising and falling edges of the digital signal. A first current path is disposed between a power supply node and the first node. The first current path includes a first transistor coupled between the first node and a first bias source. The first bias source is coupled between the first transistor and the power supply node. The output node is coupled to a first intermediate node in the first current path between the transistor and the first bias source. A control terminal of the first transistor is coupled to the output node via a feedback network.

    MEMS gyroscope with calibration of the scale factor in real time and calibration method thereof
    317.
    发明授权
    MEMS gyroscope with calibration of the scale factor in real time and calibration method thereof 有权

    公开(公告)号：US11340069B2

    公开(公告)日：2022-05-24

    申请号：US16898339

    申请日：2020-06-10

    Applicant: STMICROELECTRONICS S.R.L.

    Inventor： Luca Guerinoni ,  Luca Giuseppe Falorni ,  Matteo Fabio Brunetto

    IPC: G01C19/5712 ,  G01C19/5755 ,  G01C19/574 ,  B81B3/00

    Abstract: The MEMS gyroscope has a mobile mass carried by a supporting structure to move in a driving direction and in a first sensing direction, perpendicular to each other. A driving structure governs movement of the mobile mass in the driving direction at a driving frequency. A movement sensing structure is coupled to the mobile mass and detects the movement of the mobile mass in the sensing direction. A quadrature-injection structure is coupled to the mobile mass and causes a first and a second movement of the mobile mass in the sensing direction in a first calibration half-period and, respectively, a second calibration half-period. The movement-sensing structure supplies a sensing signal having an amplitude switching between a first and a second value that depend upon the movement of the mobile mass as a result of an external angular velocity and of the first and second quadrature movements. The first and second values of the sensing signal are subtracted from each other and compared with a stored difference value to supply information of variation of the scale factor.

    Processing of electrophysiological signals
    318.
    发明授权
    Processing of electrophysiological signals 有权

    公开(公告)号：US11337617B2

    公开(公告)日：2022-05-24

    申请号：US16037328

    申请日：2018-07-17

    Applicant: STMicroelectronics S.r.l.

    Inventor： Francesco Rundo ,  Piero Fallica ,  Sabrina Conoci ,  Salvatore Petralia ,  Massimo Cataldo Mazzillo

    IPC: G06K9/00 ,  A61B5/00 ,  G16H10/60 ,  A61B5/349 ,  A61B5/024 ,  G16H50/00 ,  G06V40/10

    Abstract: In an embodiment, PhotoPlethysmoGraphy (PPG) signals are processed by detecting peaks and valleys in the PPG signal, segmenting the PPG signal to provide a time series of PPG waveforms located between two subsequent valleys in the PPG signal, applying to the waveforms in the time series pattern recognition with respect to a reference PPG waveform pattern produced based on a mathematical model of the PPG signal by assigning to the waveforms in the time series a recognition score. A resulting PPG signal is produced by retaining the waveforms in the time series having an assigned recognition score reaching a recognition threshold, and discarding the waveforms in the time series having an assigned recognition score failing to reach the recognition threshold.

    Half-bridge control circuit, related integrated circuit and half-bridge circuit
    320.
    发明授权
    Half-bridge control circuit, related integrated circuit and half-bridge circuit 有权

    公开(公告)号：US11336280B2

    公开(公告)日：2022-05-17

    申请号：US17150156

    申请日：2021-01-15

    Applicant: STMicroelectronics S.r.l.

    Inventor： Giuseppe Maiocchi ,  Ezio Galbiati ,  Michele Boscolo Berto ,  Maurizio Ricci

    IPC: H03K17/687 ,  H02M3/157 ,  H02M1/00

    Abstract: A half-bridge control circuit comprises an input terminal, an output terminal for providing a pulsed signal to a half-bridge driver circuit configured to drive two electronic switches connected between two supply terminals, and a feedback terminal for receiving a feedback signal indicative of the instantaneous voltage value at a switching node between the two electronic switches. A selector circuit provides a digital feedback signal. A subtractor generates an error signal by subtracting the digital feedback signal from the reference signal. An integrator generates an integration signal by integrating the value of the error signal. A down-scale circuit generates a reduced resolution integration signal by discarding one or more least significant bits of the integration signal. A sampling circuit generates a sampled integration signal by sampling the reduced resolution integration signal. A pulse generator circuit generates the pulsed signal as a function of the sampled integration signal.

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